Sengled smart light switch - wont pair

I just received two of these with high hopes. But I can not get either to pair.

The first one I took the battery tab off before I was ready, but then say around for an hour trying to do the On/Off Button resets. No luck.

The second one, I walked through the pairing menu before taking the tab off, and still it will not pair. Tried the reset as well.

Wondering if there is a trick? Something I missed?